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Technical
Guidance
> Draft Guidance on the Water Supply (Water Quality) (Scotland) Regulations 2001Regulation 25 Letters
These are letters issued by the Scottish Executive to Scottish Water in terms of Regulation 25 of The Water Supply (Water Quality) (Scotland) Regulations 1990.> 1/2003 Annual List of approved products and processes - December 2002
> 2/2003 CPP changes to national condition for polyacrylamide flocculants
> 3/2003 Reminder letter to Scottish Water about prohibition in the use of lead bases compounds in PVC-U water supply pipes that comes into force on 25 December 2003
> 4/2003 Civil Engineering uses of concrete in WTW - Prohibition of traditional use exemption under Regulation 25 (1) (c)
> 5/2003 Requirements for small surface area products and certain traditional construction products under Regulation 27 of the Water Supply (Water Quality) (Scotland) Regulations 2001
Regulation 27 Letters
These are letters issued by the Scottish Executive to Scottish Water in terms of Regulation 27 of The Water Supply (Water Quality) (Scotland) Regulations 2001.
> 2/2008: Extension of approval of Fileder filters for testing purposes
> 1/200 Appr8 Annual List of oved Products - 17 March 2008
> 1/2007 Annual List of Approved Products and Processes - December 2006 - 20 March 2007
> 2/2007 changes to approval under regulation 27 - 23 March 2007
> 1/2006 Annual List of Approved Products and Processes - December 2005
> 2/2006 Information Bulletin 2 - 2006
> 1/2005 Annual list of approved products and processes - December 2004
> 2/2005 Notice of intention to modify conditions of approval - Regulation 27(10)(b) of the Water Supply (Water Quality) (Scotland) Regulations 2001
> 3/2005 Withdrawal of approval for Evercrete DPS
> 1/2004 Reminder to Scottish Water about the prohibition in the use of lead bases compounds in PVC-U water supply pipes that came into force on 25 December 2003
> 2/2004 CPP - New national condition of use for hydrogen peroxide
> 3/2004 Regulation 27 of the Water Supply (Water Quality) (Scotland) Regulations 2001:Supply of water, other than through pipes, during emergencies and routine maintenance
> 4/2004 Annual List of approved products and processes - December 2003
> 5/2004 Analysis of acrylamide monomer in drinking water
> 6/2004 Regulation 27 of the Water Supply (Water Quality) (Scotland) Regulations 2001 Notification of New Condition of Approval for Factory-Applied Cement Mortar Lined Pipes
> 7/2004 Modification to conditions of approval for in-situ applied polymeric coatings - consultation on new operational requirements and code of practice documents
> 8/2004 Regulation 27 of the Water Supply (Water Quality) (Scotland) Regulations 2001: Use of existing equipment to supply of water, other than through pipes, during emergencies and routine maintenance
Information Letters 2003
These are information letters issued by the Scottish Executive to Scottish Water in response to ongoing issues with water quality regulations.> 1/2003 The Suitability Of Analytical Methods Used For Lead Analysis
> 2/2003 Cryptosporidium In Water Supplies: Use Of Electrically Pumped Vacuum Systems For Regulatory Cryptosporidium Analysis
> 3/2003 Analysis Of Regulatory Samples For The Monitoring Of Cryptosporidium Oocysts In Treated Water Supplies
> 4/2003 Requirements To Meet New Lead Standard
> 5/2003 Distribution Operation And Maintenance Strategy (Doms)
> 6/2003 The Water Supply (Water Quality) (Scotland) Regulations 2001 Monitoring For Clostridium Perfringens (Including Spores)
Information Letters 2004
These are information letters issued by the Scottish Executive to Scottish Water in response to ongoing issues with water quality regulations.> 1/2004 Significant Failures Of Drinking Water Quality
> 2/2004 The Water Supply (Water Quality) (Scotland) Regulations 2001: Report On The Results Of The Survey Of Analytical Performance For The Measurement Of Lead
> 3/2004 Microbiological Quality Of Water Leaving Water Treatment Works And In Service Reservoirs: Drinking Water Safety Plans And Regulation
Information Letters 2005
1/2005 NOT ISSUED> 2/2005 The Scottish Water Information Return - format for provision of certain information
> 3/2005 Guidance on sample and sample extract stability trials and preparation of samples for metals analysis
> 4/2005 Distribution operation and maintenance strategies (DOMS) update to DWQR requirements and expectations
> 5/2005 Requirements for monitoring radioactivity in water supplies
Information Letters 2006
> 1/2006 Drinking Water Safety Plans
> 2/2006 Information Return - Information Letter, Annex A+B, Annex C
> 3/2006 Chlorine Disinfection Indices -
Information Letter, Appendice 3, Appendice 4, Appendice 5
Information Letters 2007
> Letter 1/2007 DWQR Information Return -
Information Letter, Annex AB, Annex C, Annex D
> Letter 2/2007 Cryptosporidium SOPS 2007 -
Information Letter, Annex A, Annex B
> Information Letter 4/2007 Raw water monitoring requirements following fall of SWAD
> Information Letter 5/2007 Competent Analyst
> Attachment to Information Letter 5/2007 Guidance on implementation
> Letter 6/2007 Priority Event Reporting
Information Letters 2008
> Letter 1/2008 Treatment of Raw Water
> Letter 2/2008 Trigger Values for Priority Event Reporting
> Letter 3/2008 Reporting Significant Events and Incidents to DWQR